Shijiazhuang Zhongmei Coal Mine Equipment Co., Ltd.

Drill Bit
high efficiency combined drill bit

high efficiency combined drill bit

Boring diameter 76,94,110 Coupling dimension 18X18,24X24 The basal body is make of high grade alloy steel for assuring drilling efficiency. Because the drilling depth is usually up to dozens of meters, the strength and toughness of drill bits must be powerful. All the alloy segment is...
geological drill bit

geological drill bit

The bit can be used together with various drill machine in underground coal mining. The base body is machined by advanced numerical control lathe, the diamond segment adopts high class abrasive material with high precision, long service life and rapid speed. The bit can be used together...
coal drill bit

coal drill bit

Due to the technique of finish casting and superior alloy, it has the features of large torque, wide drilling range and durable. It is mainly connected with spiral drill shank and works with coal electric drill machine or portable drill machine. Due to the technique of finish casting...
PDC drill bit for roof bolter

PDC drill bit for roof bolter

PDC drill bit for roof bolter adopts high grade PDC segment material with features of super hardness and good toughness. PDC drill bit for roof bolter adopts high grade PDC segment material with features of super hardness and good toughness, it is used for drilling the rock with...
drill bit

drill bit

Adopting high-grade diamond segment material with super hardness and good toughness, and advanced welding technique and equipmen Adopting high-grade diamond segment material with super hardness and good toughness, and advanced welding technique and equipments, it is used for drilling...
Coal Drill Bit

Coal Drill Bit

It is mainly combined with spiral drill shank and works together with coal electric drill machine or portable drill machine. It is mainly connected with spiral drill shank and works together with coal electric drill machine or portable drill machine.due to the technique of finish...
drill bit

drill bit

Thebit is used for drilling the rock with hardness f10. high-grade diamond segment material with super hardness and good toughness advanced welding technique and equipments.  it is used for drilling the rock with hardness f≥10.   better drilling efficiency,...
Coal Drill Bit

Coal Drill Bit

It is mainly combined with spiral drill shank and works together with coal electric drill machine or portable drill machine. Specification:  Drilling Hole...
Drill bit

Drill bit

Its capability is greatly improved on the base of the reinforced drill bit  Its capability is greatly improved on the base of reinforced drill bit.through permeating diamond coating on the surface of hard alloy with particular technology.it holds features of strong and flexile,and...
Drill Bit

Drill Bit

The base body is made of high-grade alloy steel for assuring drilling efficiency The base body is made of high-grade alloy steel for assuring drilling efficiency. Because the drilling depth is usually up to dozens of meters, the strength and toughness of drill bits must be powerful. All...



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